Our AIH dataset is constructed based on the well-known InterHand2.6M V1.0 dataset [1]}. As shown in Fig. REF , our proposed Amodal InterHand (AIH) dataset consists of two parts: AIH_Syn and AIH_Render.
In total, AIH dataset consists of about 3 million images, where AIH_Syn contains 2.2M samples and AIH_Render contains over 0.7M samples.
AIH_Syn is generated by simple 2D image-level copy and paste, i.e. copy the left single-hand image and paste it on the right single-hand image; AIH_Render is obtained by rendering the textured interacting hand mesh to the image plane. Both AIH_Syn and AIH_Render contain the amodal and modal segmentation masks as well as the appearance content ground-truths.
